What folder does cpro refer to?

https://www.baidu.com/robots.txt

curl https://www.baidu.com/robots.txt
User-agent: Baiduspider
Disallow: / baidu
Disallow: / s?
Disallow: / ulink?
Disallow: / link?
Disallow: / home/news/data/

User-agent: Googlebot
Disallow: / baidu
Disallow: / s?
Disallow: / shifen/
Disallow: / homepage/
Disallow: / cpro
Disallow: / ulink?
Disallow: / link?
Disallow: / home/news/data/

excuse me, what kind of folder is this cpro?
Baidu also has a shifen folder? Hanyu Pinyin, right? What does it mean?

Dec.17,2021

robots.txt is used to prohibit search engines from crawling a subdomain name, so only Baidu knows what cpro means, but if you visit it, you can probably guess that it is related to the Internet Alliance (Baidu promotion).

MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1eb9268-272f.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1eb9268-272f.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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